I had a really nice stay at this guesthouse. It is kind of old-fashioned, but not rundown. A lot of decorations reminiscent of Carmarthen's past as well as of the place itself. A place you could maybe have found the same 30 or 40 years ago and well-maintained eversince. I really loved the mood.
Also, the owners are really super nice, kind and welcoming. A good traditional cooked breakfast is served in the morning.
Go there if you like old-style UK and want to support independent owners. I would gladly return.